Invacare Lynx L-4 Manual

Owner’s Operator and Maintenance Manual
DEALER: This manual MUST be given to
the user of the scooter.
USER: BEFORE using this scooter, read this
manual and save for future reference.
For more information regarding
Invacare products, parts, and services,
please visit www.invacare.com
Lynx™L-3 & Lynx L-4

Lynx™L-3 & Lynx L-4 2Part No. 1143205
 WARNING
POWERED SCOOTER USERS: DO NOT SERVICE OR OPERATE
THIS EQUIPMENT WITHOUT FIRST READING AND
UNDERSTANDING THE OWNER’S OPERATOR AND
MAINTENANCE MANUAL. IF YOU ARE UNABLE TO
UNDERSTAND THE WARNINGS, CAUTIONS, AND
INSTRUCTIONS, CONTACT INVACARE TECHNICAL SUPPORT
BEFORE ATTEMPTING TO SERVICE OR OPERATE THIS
EQUIPMENT - OTHERWISE INJURY OR DAMAGE MAY RESULT.
PROCEDURES OTHER THAN THOSE DESCRIBED IN THIS
MANUAL MUST BE PERFORMED BY A QUALIFIED TECHNICIAN.
DEALERS AND QUALIFIED TECHNICIANS: DO NOT SERVICE OR
OPERATE THIS EQUIPMENT WITHOUT FIRST READING AND
UNDERSTANDING THE OWNER’S OPERATOR AND
MAINTENANCE MANUAL AND THE SERVICE MANUAL (IF
APPLICABLE). IF YOU ARE UNABLE TO UNDERSTAND THE
WARNINGS, CAUTIONS AND INSTRUCTIONS, CONTACT
INVACARE TECHNICAL SUPPORT BEFORE ATTEMPTING TO
SERVICE OR OPERATE THIS EQUIPMENT - OTHERWISE, INJURY
OR DAMAGE MAY RESULT.
NOTE: Updated versions of this manual are available on www.invacare.com.

TABLE OF CONTENTS
Part No. 1143205 3Lynx™L-3 & Lynx L-4
TABLE OF CONTENTS
REGISTER YOUR PRODUCT ............................................................... 4
SPECIAL NOTES ................................................................................ 7
TYPICAL PRODUCT PARAMETERS .................................................... 9
LABEL LOCATIONS ......................................................................... 10
SECTION 1—GENERAL GUIDELINES ................................................. 11
Repair or Service Information ...............................................................................................................11
Operation Information............................................................................................................................11
Electrical .....................................................................................................................................................13
Batteries......................................................................................................................................................14
Rain Test.....................................................................................................................................................14
eight Training ........................................................................................................................................14
eight Limitation.....................................................................................................................................14
SECTION 2—EMI INFORMATION ..................................................... 15
SECTION 3—SAFETY/HANDLING OF PO ERED SCOOTERS ................ 17
Stability and Balance.................................................................................................................................17
Stairways.....................................................................................................................................................18
Escalators....................................................................................................................................................18
SECTION 4—SAFETY INSPECTION ................................................... 19
Safety Inspection Checklists...................................................................................................................19
SECTION 5—MAINTENANCE AND TROUBLESHOOTING ................... 22
Suggested Maintenance Procedures .....................................................................................................22
Troubleshooting........................................................................................................................................23
Service Indicator Error Codes ..............................................................................................................24
Resetting the Circuit Breaker................................................................................................................25
SECTION 6—OPERATION OF THE PO ERED SCOOTER ..................... 26
Control Panel ............................................................................................................................................26
Operating the Scooter ............................................................................................................................27
Engaging/Disengaging the Brake Release Lever .................................................................................29
SECTION 7—SEAT AND ARMS ......................................................... 30
Removing/Installing the Seat...................................................................................................................30
Adjusting Seat Height...............................................................................................................................31
Adjusting 90° Seat Swivel ......................................................................................................................32
Adjusting the Arm idth.......................................................................................................................32
Replacing Armrest Pads ..........................................................................................................................33

TABLE OF CONTENTS
Part No. 1143205 4Lynx™L-3 & Lynx L-4
TABLE OF CONTENTS
SECTION 8—TILLER ADJUSTMENT ................................................... 34
Adjusting the Tiller Angle .......................................................................................................................34
SECTION 9— HEELS AND CASTERS ................................................ 35
Removing/Installing the Drive heels ................................................................................................35
Removing/Installing the Front heel ..................................................................................................36
SECTION 10—BATTERIES ................................................................ 37
Recommended Battery Type .................................................................................................................37
Removing/Installing the Battery Box ....................................................................................................38
Removing/Installing the Batteries..........................................................................................................39
Charging the Batteries.............................................................................................................................41
SECTION 11—TRANSPORTING ........................................................ 43
Transporting the Scooter .......................................................................................................................43
SECTION 12—ACCESSORIES ............................................................ 45
Installing/Removing the Accessory Tube ............................................................................................45
Installing/Removing the Crutch/Cane Holder....................................................................................46
Installing/Removing the Safety Flag .......................................................................................................47
Installing/Removing/Using the alker Holder .................................................................................47
Installing/Removing the Rear Mounted Basket ..................................................................................49
LIMITED ARRANTY ..................................................................... 51
REGISTER YOUR PRODUCT
The benefits of registering:
1. Safeguard your investment.
2. Ensure long term maintenance and servicing of your purchase.
3. Receive updates with product information, maintenance tips, and industry news.
4. Invacare can contact you or your provider, if servicing is needed on your product.
5. It will enable Invacare to improve product designs based on your input and needs.
Register ONLINE at www.invacare.com
- or -
Complete and mail the form on the next page
Any registration information you submit will be used by Invacare Corporation only, and
protected as required by applicable laws and regulations.

Name_______________________________________________________________
Address _____________________________________________________________
City ___________________State/Province __________
Zip/Postal Code ________
Email ___________________________________Phone No. _________________
Invacare Model No. ______________________Serial No. __________________
Purchased From _________________________Date of Purchase:___________
1. Method of purchase: (check all that apply)
❏ Medicare ❏ Insurance ❏Medicaid ❏ Other __________________________
2. This product was purchased for use by: (check one)
❏ Self ❏ Parent ❏ Spouse ❏ Other
3. Product was purchased for use at:
❏ Home ❏ Facility ❏ Other
4. I purchased an Invacare product because:
❏ Price ❏ Features (list features) _________________________________________
5. Who referred you to Invacare products? (check all that apply)
❏Doctor ❏ Therapist ❏ Friend ❏Relative ❏Dealer/Provider ❏Other_________
❏ Advertisement (circle one): TV, Radio, Magazine, Newspaper ❏ No Referral_____
6. What additional features, if any, would you like to see on this product?
__________________________________________________________________________
7. Would you like information sent to you about Invacare products that may be available for a
particular medical condition? ❏Yes ❏No
If yes, please list any condition(s) here and we will send you information by email and/or mail about
any available Invacare products that may help treat, care for or manage such condition(s):
__________________________________________________________________________
8. Would you like to receive updated information via email or regular mail about the Invacare
home medical products sold by Invacare's dealers? ❏Yes ❏No
9. What would you like to see on the Invacare website?
__________________________________________________________________________
10. Would you like to be part of future online surveys for Invacare products? ❏ Yes ❏ No
11. User's Year of birth: ______________________________________________________
If at any time you wish not to receive future mailings from us, please contact us at Invacare Corporation,
CRM Department, 39400 Taylor Parkway, Elyria, OH 44035, or fax to 877-619-7996 and we will remove
you from our mailing list.
To find more information about our products, visit www.invacare.com.
PRODUCT REGISTRATION FORM
Register ONLINE at www.invacare.com - or -
Complete and mail this form
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Invacare Product Registration Form
Please Seal with
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SPECIAL NOTES
Part No. 1143205 7Lynx™L-3 & Lynx L-4
SPECIAL NOTES
Signal words are used in this manual and apply to hazards or unsafe practices which
could result in personal injury or property damage. Refer to the table below for
definitions of the signal words.
NOTICE
THE INFORMATION CONTAINED IN THIS DOCUMENT IS SUBJECT TO
CHANGE WITHOUT NOTICE.
As a manufacturer of owered scooters, Invacare endeavors to su ly a wide
variety of owered scooters to meet many needs of the end user. However, final
selection of the ty e of owered scooter to be used by an individual rests solely with
the user and his/her healthcare rofessional ca able of making such a selection.
TIE-DOWN RESTRAINTS AND SEAT RESTRAINTS
Powered scooter users should NOT be trans orted in vehicles of any kind while in
the owered scooter. As of this date, the De artment of Trans ortation has not
a roved any tie-down systems for trans ortation of a user while in a owered
scooter, in a moving vehicle of any ty e.
It is Invacare’s osition that users of owered scooters should be transferred into
a ro riate seating in vehicles for trans ortation and use be made of the restraints
made available by the auto industry. Invacare cannot and does not recommend any
owered scooter trans ortation systems.
SEAT POSITIONING STRAP
It is the obligation of the Dealers, Thera ists and other Healthcare Professionals to
determine if a seating ositioning stra is required to ensure the safe o eration of
this equi ment by the user. Serious injury can occur in the event of a fall from a
owered scooter.
 WARNING
The seat ositioning stra is a ositioning belt only. It is not designed for use as a
safety device withstanding high stress loads such as auto or aircraft safety belts. If
signs of wear a ear, belt MUST be re laced immediately.
Invacare roducts are s ecifically designed and manufactured for use in conjunction
with Invacare accessories. Accessories designed by other manufacturers have not
been tested by Invacare and are not recommended for use with Invacare roducts.
SIGNAL ORD MEANING
DANGER
Danger indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury.
WARN NG
Warning indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUT ON
Caution indicates a potentially hazardous situation which, if not avoided,
may result in property damage.

SPECIAL NOTES
Lynx™L-3 & Lynx L-4 8Part No. 1143205
 WARNING
Scooters should be examined during maintenance for signs of corrosion (water
ex osure, incontinence, etc.). Electrical com onents damaged by corrosion should
be re laced IMMEDIATELY.
Scooters that are used by incontinent users and/or are frequently ex osed to water
may require re lacement of electrical com onents more frequently.

TYPICAL PRODUCT PARAMETERS
Part No. 1143205 9Lynx™L-3 & Lynx L-4
TYPICAL PRODUCT PARAMETERS
LYNX L-3 LYNX L-4
OVERALL DIMENSIONS
BASE LENGTH:
BASE W DTH:
STEP HE GHT (Floor Pan to Ground):
SEAT HE GHT (Floor Pan to Seat Cushion):
OVERALL HE GHT
39.8 inches
26 inches
4 inches
14 - 16 inches
36
SEAT DIMENSIONS
W DTH:
DEPTH:
BACK HE GHT:
16.5 inches
14.5 inches
16 inches
ARM DIMENSIONS
LENGTH:
HE GHT BETWEEN SEAT AND ARMS:
M N MUM W DTH BETWEEN ARMS:
11.6 inches
9 inches
15.0 inches
SPEED RANGE 0 - 5 m.p.h.
MAXIMUM INCLINE CAPABILITY 8° Grade
WHEELS
FRONT WHEEL:
DR VE WHEEL:
8 inches x 2 inches
8 inches x 2 inches
TURNING RADIUS: 39.4 inches 51.2 inches
WEIGHT OF PRODUCT:
FRONT BASE SECT ON:
REAR BASE SECT ON:
BATTER ES:
SEAT:
BASKET:
30 lbs
25 lbs
23 lbs
24 lbs
1 lb
39 lbs
25 lbs
23 lbs
24 lbs
1 lb
TOTAL WEIGHT OF PRODUCT: 103 lbs 112 lbs
MAXIMUM WEIGHT LIMITATION 250 lbs 250 lbs

LABEL LOCATIONS
Lynx™L-3 & Lynx L-4 10 Part No. 1143205
LABEL LOCATIONS
NOTE: Lynx L- shown. The labels are in the same locations for the Lynx L-4.
DO NOT operate the scooter unless the tiller is in the locked position.
DO NOT lean against or pull forward on the tiller while mounting or
dismounting the scooter. Otherwise, injury may occur.
--------------------------------------------------------------------------------------------
DO NOT lift scooter up by the front or rear shroud. Otherwise injury
or damage to the scooter may occur.
1118373 Rev A
NOTE: The battery wiring label is on
the underside of the battery box door.
!WARNING
Pinch Point.
1079203
Serial
Number
Label

SECTION 1—GENERAL GUIDELINES
Part No. 1143205 11 Lynx™L-3 & Lynx L-4
SECTION 1—GENERAL GUIDELINES
 WARNING
SECTION 1 - GENERAL GUIDELINES contains im ortant information for the safe
o eration and use of this roduct. DO NOT use this roduct or any available
o tional equi ment without first com letely reading and understanding these
instructions and any additional instructional material such as Owner’s Manuals,
Service Manuals or Instruction Sheets su lied with this roduct or o tional
equi ment. If you are unable to understand the Warnings, Cautions or Instructions,
contact a healthcare rofessional, dealer or technical ersonnel before attem ting
to use this equi ment - otherwise, injury or damage may occur.
Repair or Service Information
Set-up of the Electronics Control Unit is to be performed only by a qualified technician.
he final adjustments of the controller may affect other activities of the scooter. Damage
to the equipment could occur if improperly set-up or adjusted.
DO NO service or adjust your powered scooter while occupied, unless otherwise noted.
Scooters should be examined during maintenance for signs of corrosion (water exposure,
incontinence, etc.). Electrical components damaged by corrosion should be replaced
IMMEDIA ELY.
Scooters that are used by incontinent users and/or are frequently exposed to water may
require replacement of electrical components more frequently.
Operation Information
Invacare products are specifically designed and manufactured for use in conjunction with
Invacare accessories. Accessories designed by other manufacturers have not been tested
by Invacare and are not recommended for use with Invacare products.
Performance adjustments should only be made by professionals of the healthcare field or
persons fully conversant with this process and the driver's capabilities. Incorrect settings
could cause injury to the driver, bystanders and damage to the scooter and to
surrounding property.
Before using the scooter, verify that the motor is plugged into the harness.
DO NO connect any medical devices such as ventilators, life support machines, etc., to
the battery. his could cause unexpected failure of the device and the powered scooter.
DO NO operate the powered scooter until you have checked that the surroundings are
clear and that the area is safe for travel.
DO NO make sharp turns in the FORWARD or REVERSE direction at excessive speed.
Failure to observe the warning can cause the scooter to tip over and may result in injury
to user and/or damage to the product.

SECTION 1—GENERAL GUIDELINES
Lynx™L-3 & Lynx L-4 12 Part No. 1143205
DO NO operate on roads, streets or highways.
DO NO attempt to move up or down an incline with water, ice or oil film.
Avoid operating the scooter in dark or poorly lit areas.
DO NO climb and/or go UP or DOWN ramps or traverse slopes greater than 8°.
When negotiating ramps, if the throttle control lever is released while in the forward
motion, the powered scooter will roll back approximately one foot before the brake
engages. If the throttle control lever is released while in the reverse motion, the powered
scooter will roll back approximately three feet before the brake engages.
DO NO attempt to drive over curbs or obstacles. Doing so may cause your powered
scooter to turn over and cause bodily harm and/or damage to the scooter.
DO NO use an escalator to move a powered scooter between floors. Serious bodily
injury may occur.
Powered scooter with batteries and seat weighs between 103 and 112 lbs. Use proper
lifting techniques (lift with your legs) to avoid injury.
Before attempting to sit in or exit the powered scooter, remove the key from the ignition.
his will ensure that the power is off and the powered scooter will not drive.
DO NO remove the key or shut off while the powered scooter is in motion.
Remove the key from the ignition while the powered scooter is not in use so as to avoid
injury and/or damage to the scooter and surrounding areas.
DO NO attempt to lift the powered scooter by any removable (detachable) parts. Lifting
by means of any removable (detachable) parts of a powered scooter may result in injury
to the user or damage to the powered scooter.
DO NO attempt to lift the powered scooter by its tiller, seat or shrouds.
DO NO stand on the frame of the powered scooter.
DO NO stand on the shroud(s) of the powered scooter.
DO NO operate the powered scooter without the rear shroud installed, to avoid injury
and/or damage to scooter.
Before use, ensure that the locking pins are fully inserted through the front and rear frame
assemblies. Make sure the detent balls of the locking pins are fully released beyond the
outer edge of the front and rear frame assemblies before operating the scooter. Otherwise,
injury and/or damage may result.
DO NO attempt to reach objects if you have to move forward in the seat or pick them up
from the floor by reaching between your knees.
DO NO lean over the top of the back upholstery to reach objects behind you, as this may
cause the powered scooter to tip over.
DO NO shift your weight or sitting position toward the direction you are reaching as the
powered scooter may tip over.

SECTION 1—GENERAL GUIDELINES
Part No. 1143205 13 Lynx™L-3 & Lynx L-4
Determine and establish your particular safety limits by practicing bending, reaching and
transferring activities in the presence of a qualified healthcare professional before
attempting active use of the powered scooter.
For individuals with balance problems, DO NO attempt to transfer into or out of the
powered scooter without assistance. Practice transferring activities with an assistant in
the presence of a qualified healthcare professional.
Ensure that the seat is properly locked before use. Otherwise the user may fall from the
scooter resulting in bodily harm. Attempting unsafe transfers may cause the user to fall,
resulting in serious injury.
Ensure that the seat is locked in the forward position before and during the operation of
the scooter. Otherwise, injury to the user and/or damage to the scooter may result.
Ensure that the tiller is properly adjusted before driving the scooter.
After making any tiller angle adjustment and before use, the tiller must be securely locked
into position. Otherwise the user may fall from the scooter resulting in bodily harm and/
or damage to the scooter. Gently push/pull the tiller to ensure that the tiller is securely
engaged.
DO NO overtighten hardware attaching to the frame. his could cause damage to the
frame tubing.
ALWAYS keep hands and fingers clear of moving parts to avoid injury.
ALWAYS wear your seat positioning strap. he seat positioning strap is a positioning belt
ONLY. It is not designed for use as a safety device withstanding high stress loads such as
auto or aircraft safety belts. If signs of wear appear, belt MUS be replaced immediately.
ALWAYS check hand grips for looseness before using the powered scooter. If loose and/
or worn, replace immediately.
If scooter is exposed to extreme temperature (above 100°F or below 32°F), high humidity
and/or becomes wet, prior to use, ensure handgrips do not twist on scooter handles.
Otherwise, damage or injury may occur.
Avoid storing or using the scooter near open flame or combustible products. Serious
injury or damage to property may result.
Never leave an unoccupied scooter on an incline.
ALWAYS use anti-tippers. When outdoors on wet, soft ground or on gravel surfaces,
anti-tippers may not provide the same level of protection against tip over. Extra caution
MUS be observed when traversing such surfaces.
Electrical
Check to ensure that all electrical connections are secure at all times.

SECTION 1—GENERAL GUIDELINES
Lynx™L-3 & Lynx L-4 14 Part No. 1143205
G ounding Inst uctions
DO NO , under any circumstances, cut or remove the round grounding prong from any
plug used with or for Invacare products. Some devices are equipped with three-prong
(grounding) plugs for protection against possible shock hazards. Where a two-prong wall
receptacle is encountered, it is the personal responsibility and obligation of the customer
to contact a qualified electrician and have the two-prong receptacle replaced with a
properly grounded three-prong wall receptacle in accordance with the National Electrical
Code. If you must use an extension cord, use ONLY a three-wire extension cord having
the same or higher electrical rating as the device being connected. In addition, Invacare
has placed RED/ORANGE warning tags on some equipment. DO NO remove these tags.
Batteries
he warranty and performance specifications contained in this manual are based on the
use of deep cycle gel cell batteries. Invacare strongly recommends their use as the power
source for this unit.
Carefully read battery/battery charger information prior to installing, servicing or
operating your powered scooter.
Rain Test
Invacare has tested its powered scooters in accordance with ISO 7176 “Rain est”. his
provides the end user or his/her attendant sufficient time to remove his/her power
powered scooter from a rain storm and retain powered scooter operation.
DO NO leave the powered scooter in a rain storm of any kind.
DO NO use the powered scooter in a shower.
DO NO leave the powered scooter in a damp area for any length of time.
Direct exposure to rain or dampness will cause the scooter to malfunction electrically and
mechanically; may cause the powered scooter to prematurely rust.
Check to ensure that all electrical connections are secure at all times.
Weight Training
Invacare DOES NO recommend the use of its powered scooters as a weight training
apparatus. Invacare powered scooters have NO been designed or tested as a seat for any
kind of weight training. If occupant uses said powered scooter as a weight training
apparatus, Invacare shall NO be liable for bodily injury and the warranty is void.
Weight Limitation
he weight limitation is 250 lbs.

SECTION 2—EMI INFORMATION
Part No. 1143205 1 Lynx™L-3 & Lynx L-4
SECTION 2—EMI INFORMATION
 WARNING
CAUTION: IT IS VERY IMPORTANT THAT YOU READ THIS INFORMATION
REGARDING THE POSSIBLE EFFECTS OF ELECTROMAGNETIC
INTERFERENCE ON YOUR POWERED WHEELCHAIR.
Electromagnetic Interference (EMI) From Radio Wave Sources
Powered wheelchairs and motorized scooters (in this text, both will be referred to
as owered wheelchairs) may be susce tible to electromagnetic interference (EMI),
which is interfering electromagnetic energy (EM) emitted from sources such as
radio stations, TV stations, amateur radio (HAM) transmitters, two way radios, and
cellular hones. The interference (from radio wave sources) can cause the owered
wheelchair to release its brakes, move by itself, or move in unintended directions. It
can also ermanently damage the owered wheelchair's control system. The
intensity of the interfering EM energy can be measured in volts er meter (V/m).
Each owered wheelchair can resist EMI u to a certain intensity. This is called its
"immunity level." The higher the immunity level, the greater the rotection. At this
time, current technology is ca able of achieving at least a 20 V/m immunity level,
which would rovide useful rotection from the more common sources of radiated
EMI.
There are a number of sources of relatively intense electromagnetic fields in the
everyday environment. Some of these sources are obvious and easy to avoid.
Others are not a arent and ex osure is unavoidable. However, we believe that by
following the warnings listed below, your risk to EMI will be minimized.
The sources of radiated EMI can be broadly classified into three ty es:
1) Hand-held Portable transceivers (transmitters-receivers with the antenna
mounted directly on the transmitting unit. Exam les include: citizens band (CB)
radios, "walkie talkie", security, fire and olice transceivers, cellular tele hones,
and other ersonal communication devices).
NOTE: Some cellular telephones and similar devices transmit signals while they are ON,
even when not being used.
2) Medium-range mobile transceivers, such as those used in olice cars, fire trucks,
ambulances and taxis. These usually have the antenna mounted on the outside of
the vehicle; and
3) Long-range transmitters and transceivers, such as commercial broadcast
transmitters (radio and TV broadcast antenna towers) and amateur (HAM)
radios.
NOTE: Other types of hand-held devices, such as cordless phones, laptop computers,
M/FM radios, TV sets, CD players, cassette players, and small appliances, such as elec-
tric shavers and hair dryers, so far as we know, are not likely to cause EMI problems to
your powered wheelchair.

SECTION 2—EMI INFORMATION
Lynx™L-3 & Lynx L-4 16 Part No. 1143205
 WARNING
Powered Wheelchair Electromagnetic Interference (EMI)
Because EM energy ra idly becomes more intense as one moves closer to the
transmitting antenna (source), the EM fields from hand-held radio wave sources
(transceivers) are of s ecial concern. It is ossible to unintentionally bring high
levels of EM energy very close to the owered wheelchair's control system while
using these devices. This can affect owered wheelchair movement and braking.
Therefore, the warnings listed below are recommended to revent ossible
interference with the control system of the owered wheelchair.
Electromagnetic interference (EMI) from sources such as radio and TV stations,
amateur radio (HAM) transmitters, two-way radios, and cellular hones can affect
owered wheelchairs and motorized scooters.
FOLLOWING THE WARNINGS LISTED BELOW SHOULD REDUCE THE
CHANCE OF UNINTENDED BRAKE RELEASE OR POWERED WHEELCHAIR
MOVEMENT WHICH COULD RESULT IN SERIOUS INJURY.
1) Do not o erate hand-held transceivers (transmitters receivers), such as citizens
band (CB) radios, or turn ON ersonal communication devices, such as cellular
hones, while the owered wheelchair is turned ON;
2) Be aware of nearby transmitters, such as radio or TV stations, and try to avoid
coming close to them;
3) If unintended movement or brake release occurs, turn the owered wheelchair
OFF as soon as it is safe;
4) Be aware that adding accessories or com onents, or modifying the owered
wheelchair, may make it more susce tible to EMI (NOTE: There is no easy way
to evaluate their effect on the overall immunity of the owered wheelchair); and
5) Re ort all incidents of unintended movement or brake release to the owered
wheelchair manufacturer, and note whether there is a source of EMI nearby.
Im ortant Information
1) 20 volts er meter (V/m) is a generally achievable and useful immunity level
against EMI (as of May 1994) (the higher the level, the greater the rotection);
2) This device has been tested to a radiated immunity level of 20 volts er meter.
3) The immunity level of the roduct is unknown.
Modification of any kind to the electronics of this scooter as manufactured by Invac-
are may adversely affect the EMI immunity levels.

SECTION 3—SAFETY/HANDLING OF PO ERED SCOOTERS
Part No. 1143205 17 Lynx™L-3 & Lynx L-4
SECTION 3—SAFETY/HANDLING OF
POWERED SCOOTERS
“Safety and Handling” of the powered scooter requires the close attention of the user.
his manual points out the most common procedures and techniques involved in the safe
operation and maintenance. It is important to practice and master these safe techniques
until you are comfortable in maneuvering the powered scooter.
Use this information only as a “basic” guide. he techniques that are discussed have been
used successfully by many. Individual users often develop skills to deal with daily living
activities that may differ from those described in this manual. Invacare recognizes and
encourages each individual to try what works best for him/her in overcoming obstacles
that they may encounter; however, all warnings and cautions given in this manual MUS
be followed. echniques in this manual are a starting point for the new powered scooter
user with “safety” as the most important consideration for all.
Sta ility and Balance
 WARNING
DO NOT make shar turns in the forward or reverse direction at excessive s eed.
Failure to observe the warning can cause the scooter to ti over and may result in
injury to user and/ or damage to the roduct.
ALWAYS wear your seat ositioning stra . The seat ositioning stra is a
ositioning belt ONLY. It is not designed for use as a safety device withstanding high
stress loads such as auto or aircraft safety belts. If signs of wear a ear, belt MUST
be re laced immediately.
DO NOT attem t to reach objects if you have to move forward in the seat or ick
them u from the floor by reaching down between your knees.
o assure stability and proper operation of your powered scooter, you MUS , at all times,
maintain proper balance. Your powered scooter has been designed to remain upright and
stable during normal daily activities.
Many activities require the scooter owner to reach, bend and transfer in and out of the
powered scooter. hese movements cause a change to the normal balance, the center of
gravity, and the weight distribution of the powered scooter. o determine and establish
your particular safety limits, practice bending, reaching and transferring activities in
several combinations in the presence of a qualified healthcare professional before
attempting active use of the scooter. Proper positioning is essential for your safety.

SECTION 3—SAFETY/HANDLING OF PO ERED SCOOTERS
Lynx™L-3 & Lynx L-4 18 Part No. 1143205
Stairways
 WARNING
DO NOT attem t to move an occu ied owered scooter between floors using a
stairway. Use an elevator to move an occu ied owered scooter between floors.
If moving a owered scooter between floors by means of a stairway, the occu ant
MUST be removed and trans orted inde endently of the owered scooter.
Extreme caution is advised when moving an unoccu ied owered scooter u or
down the stairs. Invacare recommends disassembling the scooter and trans orting
the com onents inde endently u or down the stairs. ONLY use secure, non-
detachable arts on each com onent for hand-hold su orts.
DO NOT attem t to lift a owered scooter by any removable (detachable) arts.
Lifting by means of removable (detachable) arts may result in injury to the user or
assistants or damage to the owered scooter.
Escalators
 WARNING
DO NOT use an escalator to move a owered scooter between floors. Serious
bodily injury may occur.
Powered scooter without the batteries can weigh between 80 and 89 lbs. Use
ro er lifting techniques (lift with your legs) to avoid injury.
Follow this procedure for moving the powered scooter between floors when an elevator
is not available:
1. Remove the occupant from the powered scooter.
2. Disassemble the scooter. Refer to ransporting the Scooter on page 43.
3. Carefully move the powered scooter components up or down the stairway.
4. Once all the components of the scooter are transported to the desired location
reassemble the scooter. Refer to ransporting the Scooter on page 43.

SECTION 4—SAFETY INSPECTION
Part No. 1143205 19 Lynx™L-3 & Lynx L-4
SECTION 4—SAFETY INSPECTION
NOTE: Every six months take your powered scooter to a qualified technician for a thorough
inspection and servicing. Regular cleaning will reveal loose or worn parts and enhance the smooth
operation of your powered scooter. To operate properly and safely, your powered scooter must be
cared for just like any other vehicle. Routine maintenance will extend the life and efficiency of your
powered scooter.
 WARNING
Before erforming any maintenance, adjustment or service, turn ower Off and
remove key from ignition.
CAUTION
As with any vehicle, the wheels and tires should be checked eriodically for cracks
and wear, and should be re laced.
Safety Inspection Checklists
Initial adjustments should be made to suit your personal body structure needs and
preference. hereafter follow these maintenance procedures:
Inspect/Adjust Initially
❑Ensure powered scooter drives straight (no excessive drag or pull to one side).
❑Check frame for damage and corrosion.
❑Ensure that the brake release lever is easy to engage/disengage.
❑Ensure that tiller adjustment mechanism engages and disengages properly and
securely.
❑Ensure that the scooter stops completely when throttle is released (i.e., does not
continue to roll as if the throttle is activated).
❑Clean upholstery and armrests.
❑Ensure armrest pad sits flush against arm tube.
❑Inspect the seat upholstery for rips and tears.
❑Inspect seat swivel for release and engagement (seat locks into the determined swivel
positions).
❑Inspect for excessive side movement or binding when the drive wheels are raised or
turned.
❑Inspect front wheel/fork assembly for proper tension by spinning the wheel. he front
wheel should come to a gradual stop.
❑Check the front fork for damage or corrosion.

SECTION 4—SAFETY INSPECTION
Lynx™L-3 & Lynx L-4 20 Part No. 1143205
❑ighten locknut if the front wheel wobbles noticeably or loosen locknut if the wheel
binds to a stop.
❑Ensure that wheel bearings are clean and free of moisture.
❑Ensure that the bolts and fasteners on the caster assemblies are tight.
❑Inspect tires for flat spots and wear.
❑Clean molded body shrouds.
❑Check that all labels are present and legible.
Inspect/Adjust Weekly
❑Ensure that tiller adjustment mechanism engages and disengages properly and
securely.
❑Ensure that the scooter stops completely when throttle is released (i.e., does not
continue to roll as if the throttle is activated).
❑Inspect tires for flat spots and wear.
Inspect/Adjust Monthly
❑Check brake for binding or interference with travel.
❑Inspect front wheel/fork assembly for proper tension by spinning the wheel. he front
wheel should come to a gradual stop.
❑ighten locknut if the front wheel wobbles noticeably or loosen locknut if the wheel
binds to a stop.
❑Inspect seat swivel for release and engagement (seat locks into the determined swivel
positions).
❑Inspect the seat positioning strap for signs of wear. Replace if worn or damaged.
❑Inspect seat positioning strap for any signs of wear. Ensure buckle latches. Verify that
the hardware that attaches the seat positioning strap to the frame is secure and
undamaged. Replace if necessary.
❑Ensure that the bolts and fasteners on the caster assemblies are tight.